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- Based upon a vectorial identity, an integral equation system concerning electromagnetic field in inhomogeneous medium is derived. 計算三維不均勻介質(zhì)中測井響應的最常用的方法是有限元素法和有限差分法。
- The drift of wind and rain in the air and the existence of inhomogeneous medium make the locus of lightning behaving as irregular curve. 風(fēng)雨在空中的漂移和空氣中不均勻介質(zhì)的存在使閃電的軌跡呈不規則曲線(xiàn)形。
- In order to study laser propagation in inhomogeneous medium, Collins formula was improved by using time inversion characteristic of optic phase conjugation wave. 摘要為了解決非均勻介質(zhì)中的光傳輸問(wèn)題，利用光學(xué)相位共軛波的時(shí)間反演特性，實(shí)現了對克斯林衍射積分公式的改進(jìn)。
- The fracture-vug reservoir in carbonate rock may be regarded as a kind of complicated inhomogeneous medium made up of various low speed bodies, which are random and has different size and form. 摘要碳酸鹽巖洞縫型油氣藏可以看作是由準均質(zhì)介質(zhì)中隨機分布大小形狀各異的低速體共同組成的復雜非均勻介質(zhì)。
- This paper proposes a new seismotomographic method to determine the velocity distribution and positions of the interfaces in a laterally inhomogeneous medium using seismic travel time data. 本文提出了一種橫向非均勻介質(zhì)中的地震層析成象方法，由地震走時(shí)資料確定介質(zhì)的速度分布和界面位置。
- The necessary conditions for construction of normal vector wave functions in inhomogeneous media with graded refractive index are studied. 研究了在漸變折射率介質(zhì)中構成標準矢量波函數的必要條件。
- Using the updating formula, the measured apparent conductivity of the inhomogeneous media obtained from the model can be updated.Thus the influence of the metal mand... 利用修正公式，可將含金屬芯棒線(xiàn)圈系實(shí)測的非均質(zhì)地層視電導率進(jìn)行修正，從而在反演之前將金屬芯棒的影響扣除。
- The nonlinear integral equation is first linearized by using Born approximation, and then the measurements are used to reconstruct the twodimensional inhomogeneous media by using the Born iterative method and the distorted Born iterative method. 首先借助于玻恩近似將非線(xiàn)性積分方程線(xiàn)性化，然后，利用玻恩迭代法和變形玻恩迭代法，由散射場(chǎng)數據對軸對稱(chēng)二維非均勻介質(zhì)進(jìn)行重建。
- Numerical migration for typical models show that, in contrast to ray method, prestack wave motion migration can correctly image inhomogeneous media, and suppress multiple reflection wave effectively. 典型的介質(zhì)模型數值分析表明，與射線(xiàn)方法相比，接收函數的波動(dòng)方程疊前偏移能對橫向非均勻介質(zhì)準確成像，不僅有較高的分辨率，而且對多次波有較明顯的壓制作用。
- In this paper the numerical solution of Green's function of potential in 2-D arbitrary inhomogeneous media with axial symmetry has been given by using the numerical mode matching(NMM) theory. 利用數值模式匹配理論，對具有軸對稱(chēng)的任意二維非均勻介質(zhì)中位場(chǎng)的格林函數給出數值解。
- A novel inverse iteration method, variational Born iteration method (VBIM), for the inversion and reconstruction of two-dimensional axisymmetic inhomogeneous media is described in this paper. 摘要提出了用于二維軸對稱(chēng)非均勻介質(zhì)結構的反演和成像的一種新的反演迭代方法-變分玻恩迭代方法(VBIM)。
- The electromagnetic field of MD in radial inhomogeneous medium 偶極子在徑向非均勻介質(zhì)中的電磁場(chǎng)分布
- English is not the usual medium of instruction in our school. 英語(yǔ)不是我校通常使用的教學(xué)語(yǔ)言。
- An ASCII control character, end of medium. 一種ASCII碼控制字符，媒體結束符。
- This cloth is of medium quality. 這種布質(zhì)量平平。
- The ABCD Parameters for Asymmetric Coupled Lines in Inhomogeneous Medium 非均勻介質(zhì)中非對稱(chēng)耦合傳輸線(xiàn)的ABCD參數
- He prefers a happy medium in life. 他在生活中甘居中游。
- Gaussian beam (GB) method is a high-frequency asymptotic method of computing wave-fields in inhomogenous media. 高斯射線(xiàn)束(GB)方法是一種用于計算不均勻介質(zhì)中波場(chǎng)的高頻近似方法。
- A fish in water is in its natural medium. 魚(yú)在水里就是在自然環(huán)境中。
- Water is the natural medium in which fish live. 水是魚(yú)類(lèi)賴(lài)以生存的自然環(huán)境。
